| Автор | Alexander B Bylev |
| Дата выпуска | 1996-11-01 |
| dc.description | We determine matrix elements of the energy - momentum operator between light-front Fock states in a scalar field theory with a non-trivial vacuum expectation value of a field without the framework of the canonical light-front formalism. Special attention is given to the contribution of zero modes. To fix all the parameters entering such a light-front Hamiltonian, one is required to calculate the vacuum expectation values (VEV) for some products of fields at the same point. We discuss a method for calculation of such VEVs in the framework of the light-front Hamiltonian approach. We suggest that the solution of field theoretical models in the light-front Hamiltonian approach needs a self-consistent simultaneous determination both of the spectrum of and these VEVs. A self-consistency condition is considered. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Light-front Hamiltonian for scalar field theories and the zero-mode problem |
| Тип | paper |
| DOI | 10.1088/0954-3899/22/11/003 |
| Electronic ISSN | 1361-6471 |
| Print ISSN | 0954-3899 |
| Журнал | Journal of Physics G: Nuclear and Particle Physics |
| Том | 22 |
| Первая страница | 1553 |
| Последняя страница | 1566 |
| Аффилиация | Alexander B Bylev; Institute of Physics, St Petersburg State University, ul Ulianovskaya 1, Petergoff, St Petersburg, 198904, Russia |
| Выпуск | 11 |
